Impact of Angiographically Detected Residual Trabeculation After Left Atrial Appendage Closure Using the WATCHMAN Device: Insight From the OCEAN-LAAC Registry

Research on the impact of angiographically detected residual trabeculation after left atrial appendage closure (LAAC) is limited. To investigate the incidence, characteristics, and clinical implications of angiographically detected residual trabeculation after LAAC using the WATCHMAN device. We anal...

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Veröffentlicht in:Journal of cardiovascular electrophysiology 2024-12
Hauptverfasser: Chatani, Ryuki, Kubo, Shunsuke, Nishiura, Naoki, Mushiake, Kazunori, Ono, Sachiyo, Maruo, Takeshi, Kadota, Kazushige, Sago, Mitsuru, Tanaka, Shuhei, Asami, Masahiko, Hachinohe, Daisuke, Naganuma, Toru, Ohno, Yohei, Tani, Tomoyuki, Okamatsu, Hideharu, Mizutani, Kazuki, Watanabe, Yusuke, Izumo, Masaki, Saji, Mike, Mizuno, Shingo, Ueno, Hiroshi, Shirai, Shinichi, Nakashima, Masaki, Yamamoto, Masanori, Hayashida, Kentaro
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container_title Journal of cardiovascular electrophysiology
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creator Chatani, Ryuki
Kubo, Shunsuke
Nishiura, Naoki
Mushiake, Kazunori
Ono, Sachiyo
Maruo, Takeshi
Kadota, Kazushige
Sago, Mitsuru
Tanaka, Shuhei
Asami, Masahiko
Hachinohe, Daisuke
Naganuma, Toru
Ohno, Yohei
Tani, Tomoyuki
Okamatsu, Hideharu
Mizutani, Kazuki
Watanabe, Yusuke
Izumo, Masaki
Saji, Mike
Mizuno, Shingo
Ueno, Hiroshi
Shirai, Shinichi
Nakashima, Masaki
Yamamoto, Masanori
Hayashida, Kentaro
description Research on the impact of angiographically detected residual trabeculation after left atrial appendage closure (LAAC) is limited. To investigate the incidence, characteristics, and clinical implications of angiographically detected residual trabeculation after LAAC using the WATCHMAN device. We analyzed 1350 consecutive patients with atrial fibrillation undergoing LAAC using the WATCHMAN device from the OCEAN-LAAC registry, which is a prospective ongoing, multicenter Japanese registry. The inclusion criteria comprised patients who successfully underwent LAAC and whose presence or absence of residual trabeculation can be confirmed using a contrast medium. The clinical outcomes were compared between patients with and without angiographically detected residual trabeculation. Residual trabeculation was angiographically detected in 5.6% (75/1350 patients). At the procedure, the proportion of peri-device leak (PDL) was significantly higher in the residual trabeculation group than in the non-residual trabeculation group (20% vs. 5.1%, p 
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To investigate the incidence, characteristics, and clinical implications of angiographically detected residual trabeculation after LAAC using the WATCHMAN device. We analyzed 1350 consecutive patients with atrial fibrillation undergoing LAAC using the WATCHMAN device from the OCEAN-LAAC registry, which is a prospective ongoing, multicenter Japanese registry. The inclusion criteria comprised patients who successfully underwent LAAC and whose presence or absence of residual trabeculation can be confirmed using a contrast medium. The clinical outcomes were compared between patients with and without angiographically detected residual trabeculation. Residual trabeculation was angiographically detected in 5.6% (75/1350 patients). At the procedure, the proportion of peri-device leak (PDL) was significantly higher in the residual trabeculation group than in the non-residual trabeculation group (20% vs. 5.1%, p &lt; 0.001). However, the PDL and device-related thrombosis at 45 days and 1 year were comparable between the two groups (37% vs. 23%, p = 0.24; 28% vs. 31%, p = 0.84; 2.1% vs. 1.4%, p = 0.50; 6.9% vs. 6.0%, p = 0.69, respectively). The 3-year cumulative incidence of ischemic stroke, all cardiovascular death, and all-cause death were comparable between the two groups (5.7% vs. 5.5%, log-rank p = 0.96; 7.7% vs. 8.9%, log-rank p = 0.34, 31.4% vs. 22.3%, log-rank p = 0.71, respectively). The angiographically detected residual trabeculation rate was 5.6%, and this population had a significantly higher prevalence of PDL at the procedure. 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However, the PDL and device-related thrombosis at 45 days and 1 year were comparable between the two groups (37% vs. 23%, p = 0.24; 28% vs. 31%, p = 0.84; 2.1% vs. 1.4%, p = 0.50; 6.9% vs. 6.0%, p = 0.69, respectively). The 3-year cumulative incidence of ischemic stroke, all cardiovascular death, and all-cause death were comparable between the two groups (5.7% vs. 5.5%, log-rank p = 0.96; 7.7% vs. 8.9%, log-rank p = 0.34, 31.4% vs. 22.3%, log-rank p = 0.71, respectively). The angiographically detected residual trabeculation rate was 5.6%, and this population had a significantly higher prevalence of PDL at the procedure. 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title Impact of Angiographically Detected Residual Trabeculation After Left Atrial Appendage Closure Using the WATCHMAN Device: Insight From the OCEAN-LAAC Registry
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